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Genetic diversity and occult hepatitis B infection in Africa: A comprehensive review

World Journal of Hepatology 2024年第5期16卷 843-859页

作者： Michee M Bazie Mahamoudou Sanou flor.ncia.wendkuuni djigma.tegwinde r.beca.compa.r. Dorcas Obiri-Yeboah Benoît Kabamba Bolni Marius Nagalo Jacques Simpore rasmata Ouédraogo Department of Medicine Transmissible Diseases LaboratoryUniversitéJoseph KI-ZERBOOuagadougou 0000Burkina Faso Department of Biochemistry and Microbiology Molecular Biology and Genetics LaboratoryUniversity Joseph KI-ZERBOOuagadougou 0000Burkina Faso Infectious and parasitic disease Laboratory Health Sciences Research InstituteIRSS/CNRSTNational Center for Scientific and Technological ResearchOuagadougou 0000Burkina Faso Department of Microbiology and Immunology School of Medical SciencesUniversity of Cape CoastPMBCape Coast 0000Ghana Department of Clinical Biology Virology LaboratoryCliniques Universitaires Saint LucUniversitéCatholique de LouvainBruxelles 0000Belgium Division of Hematology and Oncology Mayo ClinicAZ 0000United States

BACKGrOUND Occult hepatitis B infection(OBI)is a globally prevalent infection,with its frequency being influenced by the prevalence of hepatitis B virus(HBV)infection in a particular geographic region,including *** can be transmitted th-rough blood transfusions and organ transplants and has been linked to the development of hepatocellular carcinoma(HCC).The associated HBV genotype influences the *** To highlight the genetic diversity and prevalence of OBI in *** This systematic review followed the Preferred reporting Items for Systematic reviews and Meta-Analyses guidelines and involved a comprehensive search on PubMed,Google Scholar,Science Direct,and African Journals Online for published studies on the prevalence and genetic diversity of OBI in *** The synthesis included 83 articles,revealing that the prevalence of OBI varied between countries and population groups,with the highest prevalence being 90.9%in patients with hepatitis C virus infection and 38%in blood donors,indicating an increased risk of HBV transmission through blood *** of OBI reactivation have been reported following *** D is the predominant,followed by genotypes A and *** This review highlights the prevalence of OBI in Africa,which varies across countries and population *** study also demonstrates that genotype D is the most prevalent.

关键词： Occult hepatitis B infection Blood transfusion Genetic diversity

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HPV/HBV or HPV/HCV Co-Infections in Women Treated for Chronic Hepatitis at Hôpital Saint Camille in Ouagadougou, Burkina Faso

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American Journal of Molecular Biology 2024年第1期14卷 1-12页

作者： Estelle Ouédraogo Théodora Mahoukèdè Zohoncon Bagora Bayala Prosper Bado rose P. Clémence Da rogomenoma Alice Ouedraogo Ina Marie Angèle Traoré Punya Akouélé Kuassi-Kpede Samiratou Ouédraogo Essi Etonam Dovo Lassina Traoré Albert Théophane Yonli flor.ncia.wendkuuni djigma Olga Mélanie Lompo Jacques Simpore Laboratory of Molecular Biology and Genetics (LABIOGENE) University Joseph KI-ZERBO Ouagadougou Burkina Faso Centre of Biomolecular research Pietro Annigoni (CErBA) Ouagadougou Burkina Faso Hô spital Saint Camille of Ouagadougou (HOSCO) Ouagadougou Burkina Faso Faculty of Health University Saint Thomas d’Aquin (USTA) Ouagadougou Burkina Faso Ecole Normale Supérieure Koudougou Burkina Faso Chair “research and Action Against Cancer” Département de Santé Publique Training and Research Unit in Health Sciences University Joseph KI-ZERBO Ouagadougou Burkina Faso Observatoire National de la Santé de la Population Institut National de Santé Publique Ouagadougou Burkina Faso The Department of Epidemiology Biostatistics and Occupational Health School of Population and Global Health Montreal Canada Laboratory of Pathological Anatomy and Cytology University Joseph KI-ZERBO Ouagadougou Burkina Faso

Introduction: Cervical cancer is a public health concern and is mainly caused by Human papillomaviruses (HPV). In many parts of the world, studies are being carried out to understand the different genotypes to better tackle this issue. We conducted a study to determine the prevalence of HPV genotypes in women with chronic hepatitis B or C infection, co-infected or not with HIV, treated at the Hôpital Saint Camille in Ouagadougou (Burkina Faso). Methods: This study was conducted from April to July 2023, including 100 women in gastroenterology at Hôpital Saint Camille. A questionnaire on their socio-demographic and life style was administrated;and endocervical samples were collected using sterile swabs and then sent to Centre of Biomolecular research Pietro Annigoni (CErBA). HPV molecular detection and genotyping were performed by PCr and hybridization using the HPV Direct Flow Chips kit. Data were analysis using chi square test or Fischer’s exact test with a significance threshold for p results: The prevalence of HPV infection was 28% (28/100) on the sample of women tested. The most frequent genotypes were HPV 52 (8.33%), followed by HPV 18 and 68 (6.25% each) for high-risk HPVs, and HPV 6, 44/55 and 62/81 (8.33% each) for low-risk HPVs. Conclusion: This study, the first of its kind in Burkina Faso on this group of the population, reveals that the most frequent genotypes found in this study are not included in the vaccine available in Burkina Faso (Gardasil®4).

关键词： Human Papillomavirus Cervical Cancer Hepatitis Human Immunodeficiency Virus Burkina Faso

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Genetic diversity of hepatitis viruses in West-African countries from 1996 to 2018

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World Journal of Hepatology 2018年第11期10卷 807-821页

作者： Maléki Assih Abdoul Karim Ouattara Birama Diarra Albert Theophane Yonli Tegwindé r.beca.compa.r. Dorcas Obiri-Yeboah flor.ncia.wendkuuni djigma Simplice Karou Jacques Simpore Bioche-mistry-Microbiology CERBA/LABIOGENEOuagadougou 02006Burkina Faso Laboratoryof Molecular Biology and Molecular Genetics(LABIOGENE)UFr/SVT University Ouaga I Prof Joseph KI-ZERBOOuaga-dougou 00226Burkina Faso Department of Microbiology and Immunology School of Medical SciencesUniversity of Cape CoastCape Coast 00233Ghana Ecole Supérieure des Techniques Biologiques et Alimentaires(ESTBA-UL) Universite de LomeLome 00229Togo

The severity of hepatic pathology and the response to treatment depend on the hepatitis virus genotype in the infected host. The objective of this review was to determine the distribution of hepatitis virus genotypes in West African countries. A systematic review of the literature in PubMed, Google Scholar and Science Direct was performed to identify 52 relevant articles reporting hepatitis A, B, C, D, E and G viruses *** B virus(HBV) genotype E with a prevalence of 90.6%(95%CI: 0.891-0.920) found in this review, is characterized by low genetic diversity. Hepatitis C virus(HCV) genotypes 1 and 2 represented 96.4% of HCV infections in West African countries, while hepatitis delta virus, hepatitis A virus, hepatitis G virus genotypes 1 and HEV genotype 3 were reported in some studies in Ghana and Nigeria. HBV genotype E is characterized by high prevalence, low genetic diversity and wide geographical distribution. Further studies on the clinical implications of HBV genotype E and HCV genotypes 1 and 2 are needed for the development of an effective treatment against this viral hepatitis in West African countries. Surveillance of the distribution of different genotypes is also needed to reduce recombination rates and prevent the emergence of more virulent viral strains.

关键词： Hepatitis virus Mutations Genotypes recombination West African Economic and Monetary Union

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Helicobacter pylori Virulence Genes cagA, babA2, and vacA Detection in Dyspeptic Patients from Burkina Faso

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American Journal of Molecular Biology 2023年第3期13卷 141-155页

作者： tegwinde r.beca.compa.r. Kalifou Traore Nômawendé Ines compaore Lassina Traore Sylvie Zida Serge Theophile Soubeiga Dinanibe Kambire Jean Claude r. P. Ouedraogo Aminata Dickel Sidibe Yasmine Astrid Sana Tani Sagna wendkuuni florencia djigma Henri Gautier Ouedraogo Jacques Simpore Département Biomédical et Santee Publique Institut de Recherche en Sciences de la Santé (IRSS) Ouagadougou Burkina Faso Centre de recherche Biomoléculaire Pietro Annigoni (CErBA) Ouagadougou Burkina Faso Laboratoire de Biologie et de Génétique Moléculaire (LABIOGENE) Université Joseph KI-ZERBO Ouagadougou Burkina Faso Clinique El Fateh-Suka Service de médecine et de spécialités médicales Ouagadougou Burkina Faso Département de Médecine et de Pharmacopée Traditionnelle Institut de Recherche en Sciences de la Santé (IRSS) Ouagadougou Burkina Faso

The diverse clinical presentation of Helicobacter pylori (H. pylori) infection results from the interaction between bacterial virulence, host genetics, socio-demographic and environmental factors. This study aimed to characterize Helicobacter pylori virulence genes and the associated behavioral factors among dyspeptic patients in Burkina Faso. Two hundred and fifty (250) stool samples were collected from patients with dyspepsia seen at health centers in Ouagadougou, Burkina Faso. Bacterial deoxyribonucleic acid (DNA) was extracted using a commercial kit. Virulence genes were detected using conventional multiplex Polymerase Chain reaction with specific primers. The overall prevalence of Helicobacter pylori of the 250 participants was 91.20%. CagA virulence gene was present among 20.19% of individuals, while babA2 and vacA were detected respectively among 9.65% and 67.54% of the population positive for Helicobacter pylori. Among vacA subtypes, vacAs1 was the most frequent, with 39.04%, followed by vacAi1 (19.74%), vacAi2 (17.54%), and vacAs2 with 10.96%. regarding vacAm1 and vacAm2, they were less frequent at 6.14% each. “Handwashing three times or less per day” significantly increased the risk of having vacAi2 allele and H. pylori rrNA16s, with p-values of 0.013 and 0.020, respectively. The consumption of non-tap water increases the risk of carrying the cagA virulence gene. Additionally, H. pylori-positive patients living with more than four (4) people in their household had about two times the risk of having the vacAs1 allele. The present study shows the detection of Helicobacter pylori cagA, vacA subtypes, and babA2 by stool a PCr method in Burkina Faso. The strong association between sanitary habits and virulence factors depicts the composite interaction between ecological factors, gastric mucosa, and bacteria. Therefore, the synergic action of these factors should be considered when aiming for bacterial eradication and gastric pathology cure.

关键词： Helicobacter pylori Stool cagA babA2 vacA

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Can Plasmodium falciparum Induce Homocysteinemia in Malaria Patients?

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Journal of Biosciences and Medicines 2022年第5期10卷 117-128页

作者： Noé Yaméogo Abdoul Karim Ouattara Bapio Valérie Bazié Alfred rakissida Ouédraogo flor.ncia.wendkuuni djigma Jacques Simporé Laboratoire de Biologie Moléculaires et de Génétique (LABIOGENE) UFR-SVT Université Joseph KI-ZERBO Ouagadougou Burkina Faso Centre Hospitalier Universitaire de Bogodogo Ouagadougou Burkina Faso Centre de recherche Biomoléculaire Pietro Annigoni (CErBA) Ouagadougou Burkina Faso Université Norbert Zongo (UNZ) Centre Universitaire de Manga Koudougou Burkina Faso Centre National de recherche Scientifique et Technologique Ouagadougou Burkina Faso UFr-SDS Université Joseph KI-ZERBO Ouagadougou Burkina Faso

Background: Plasmodium falciparum has developed elaborate strategies to survive in the hostile intracellular environment of the infected host cell, including resistance to oxidative stress. Cysteine is a metabolic product of homocysteine and a precursor of the antioxidant glutathione used by Plasmodium falciparum to escape harmful oxidation. Objectives: In the present study we aimed to assess whether Plasmodium falciparum can induce homocysteinemia in malaria patients of Burkina Faso. Methods: Eighty-five (85) individuals including 25 affected by severe malaria, 44 by simple malaria, and 12 negative controls for P. falciparum infection were included in the present study. An enzymatic assay of plasma homocysteinemia was performed using the Homocysteine Enzymatic Assay reagent (ref 05385415 190) on the roche/ Hitachi Cobas c. results: The results of the present study show that the mean plasma homocysteine concentrations were 15.1 ± 8.4 μmol/L among patients with severe malaria, 14.0 ± 6.0 μmol/L in patients with uncomplicated malaria, and 12.6 ± 4.1 μmol/L in negative controls for malaria parasite. Conclusions: Our findings suggest high homocysteinemia in malaria patients, especially in those with severe malaria. Monitoring homocysteinemia in the latter group will be useful to avoid complications when an elevated plasma level of homocysteine is a known risk factor for cardiovascular diseases.

关键词： Homocysteine Malaria Burkina Faso

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risk Factors Associated with Mother-to-Child Transmission of HIV-1, Spontaneous Abortion and Infant Mortality in HIV-1 Infected Women in Burkina Faso: A Prospective Study

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Journal of Biosciences and Medicines 2018年第10期6卷 12-21页

作者： Serge Theophile Soubeiga Albert Theophane Yonli Tegwindé r.beca.compa.r. Abdoul Karim Ouattara Birama Diarra Dorcas Obiri-Yeboah Zoenabo Douamba Lassina Traore wendkuuni florencia djigma Jacques Simpore Pietro Annigoni Biomolecular research Centre (CErBA) Ouagadougou Burkina Faso Laboratory of Molecular Biology and Genetics (LABIOGENE) University Ouaga I Prof. Joseph KI-ZERBO Ouagadougou Burkina Faso Department of Microbiology and Immunology School of Medical Sciences University of Cape Coast Cape Coast Ghana

Background: Despite efforts to fight, HIV/AIDS mother-to-child transmission of HIV-1 (MTCT), as well as abortion and infant mortality, remains a problem in sub-Saharan Africa. Indeed, a low level of CD4 and a high viral load can be associated with these situations. The aim of this study was to determine the risk factors associated with the occurrence of MTCT, spontaneous abortion and infant mortality in HIV-1 infected women in Ouagadougou, Burkina Faso. This was a prospective study conducted from May 2014 to September 2017 and involved 423 HIV-1 infected women followed at Saint Camille Hospital in Ouagadougou, Burkina Faso. Sociodemographic data were collected through a questionnaire. The CD4 count and HIV-1 viral load were determined using respectively BD FACSCount and Abbott m2000rt instruments. Bivariate analysis and multinomial logistic regression were performed for associations with a significance threshold for p results: The average age of women was 38.75 ± 7.98 years. rates of MTCT, abortion and infant mortality were 16.31%, 30.49% and 34.75%, respectively. The number of pregnancies was associated with the number of infant deaths (p = 0.002). A correlation between the number of pregnancies and infant mortality was observed (p = 0.002) with a relatively high rate (28.6%) among women who had three pregnancies. In addition, marital status was associated with HIV-1 infection in infants (p = 0.042) and spontaneous abortion (p = 0.033). HIV-1 infected women with low CD4 counts (less than 350 cells/μL) and those with viral load more than 1000 copies/mL were about twice as likely to have an spontaneous abortion [Or (IC 95%): 2.50 (1.085 - 5.760);p = 0.03] and [Or (95% CI): 2.16 (1.043 - 4.505);p = 0.04]. Conclusions: The results of this study show the need to improve the treatment of HIV-1 infected women in order to restore CD4 levels and make viral load of HIV-1 undetectable.

关键词： HIV-1 MTCT Abortion Infants Burkina Faso

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Involvement of CD40 (rs1883832) and MAP3K14 (rs2074292) Genes Polymorphisms in Hepatitis B Virus Infection in Burkina Faso, West Africa

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Journal of Biosciences and Medicines 2023年第12期11卷 343-361页

作者： Lassina Traore Nouhoun Nignan Sanata Kiemde Abdoul rasmané Koumbem Sidnooma Véronique Zongo Minane Nafissa Triande Abdoul Karim Ouattara Marie Simone Traore Tegwindé rébéca compaore Tani Sagna Ina Marie Traore Albert Théophane Yonli Bolni Marius Nagalo flor.ncia.wendkuuni djigma Jacques Simpore Laboratoire de Biologie Moléculaire et de Génétique (LABIOGENE) Université Joseph KI-ZERBO Ouagadougou Burkina Faso Biomolecular research Center Pietro Annigoni (CErBA) Ouagadougou Burkina Faso Université Norbert Zongo Centre Universitaire Manga Koudougou Burkina Faso Biomedical research Laboratory (LareBio) Biomedical and Public Health Department Institute for Research in Health Sciences (IRSS/CNRST) Ouaga Burkina Faso Division of Hematology and Oncology Mayo Clinic Scottsdale USA

Introduction: Hepatic diseases comprise inflammations of the liver, which can originate from drug-induced, toxic, autoimmune sources and particularly hepatitis B and C virus infection. The outcome of the disease is linked to interactions between the immune system and the virus, and also depends on the age and immune status of the patient. The aim of this study was to evaluate the association of a MAP3K14 (rs2074292), CD40 (rs1883832) polymorphism and chronic hepatitis B virus carriage in a population from Burkina Faso. Methods: In this case-control analysis, 223 and 173 samples, consisting of 90 and 53 controls and 133 and 120 cases, were examined for MAP3K14 and CD40 respectively. The cases included patients with Chronic Hepatitis B (CHB), cirrhosis or hepatocellular carcinoma (HCC). Genomic DNA extraction was executed using INVITrOGEN and FAVOrGEN kits. Genotyping of MAP3K14 (rs2074292) and CD40 (rs1883832) gene polymorphisms was accomplished via real-time PCr on the QuantStudioTM 5 real-Time instrument, followed by allelic discrimination using TaqMan Genotyper Software. Data was interpreted using SPSS version 20 and Epi info version 7.***.2.0. Odds ratios (Or), confidence intervals (CI), and p-values were derived for risk and significance evaluation. results: This study showed that the heterozygous CT genotype and the mutated T allele of the CD40 (rs1883832) gene are involved in the progression of chronic hepatitis to cirrhosis and hepatocellular carcinoma in HBV-infected patients. However, no association was found between polymorphisms in the MAP3K14 gene (rs2074292) and the progression of HBV infection. By combining the two polymorphisms, we observed either high risk or protection, depending on the genotypes of the MAP3K14 and CD40 genes simultaneously carried by the patient. Conclusion: Polymorphisms of the MAP3K14 and CD40 genes are associated with the evolution of HBV infection.

关键词： Polymorphisms MAP3K14 CD40 HBV and Burkina Faso

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Association between Polymorphisms of Glutathione S-Transferase and Progression to Cervical Cancer in Women from Burkina Faso and Mali

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Journal of Biosciences and Medicines 2020年第4期8卷 12-25页

作者： Teega-Wendé Clarisse Ouedraogo flor.ncia.wendkuuni djigma Théodora Mahoukèdè Zohoncon Boureima Idani Abdoul Karim Ouattara Pegdwendé Abel Sorgho Dorcas Obiri-Yeboah Prosper Bado Mah Alima Esther Traore Birama Diarra Albert Théophane Yonli Charlemagne Ouedraogo Jacques Simpore Laboratory of Molecular Biology and Genetics (LABIOGENE) University Joseph Ki-Zerbo Ouagadougou Burkina Faso Pietro Annigoni Biomolecular research Centre (CErBA) Ouagadougou Burkina Faso University Saint Thomas d’Aquin Faculty of Medicine Ouagadougou Burkina Faso Department of Microbiology and Immunology School of Medical Sciences University of Cape Coast PMB Cape Coast Ghana University Joseph Ki-Zerbo UFR/SDS Ouagadougou Burkina Faso

Although persistence of high-risk human papillomavirus infection is the main risk factor, Glutathione S-Transferase highly polymorphic enzyme involved in the metabolism of xenobiotics, is a good candidate gene. The objective of this study was to compare the polymorphisms of Glutathione S-Transferase M1-null in women with cancerous lesions and without lesions. This study consisted of 322 uterine cervix samples of women from Mali and Burkina Faso with Cervical Intra-epithelial Neoplasia 2 and 3, adenocarcinoma and squamous cell carcinoma and 100 women with no lesions. Human Papillomavirus genotyping was performed by real-time multiplex Polymerase Chain reaction. Glutathione S-Transferase gene polymorphisms were determined using conventional Polymerase Chain reaction followed by migration on agarose gel. A statistically significant association with high relative risks of 10.77 for the development of High grade Superficial or Squamous Intra-epithelial Lesion (95% CI = 5.59 - 20.72;p r cancer development (95% CI = 6.79 - 25.63;p ransferase M1 in the study population. In Burkina Faso and Mali, Glutathione S-Transferase M1-null presented relative risks of 9 and 11.05 for high-grade lesions, 15 and 11.40 for cancer. Similarly, significant results had been observed in women with human papillomavirus positive and human papillomavirus negative. The results of the present study support the idea that the deletion of Glutathione S-Transferase M1 plays a crucial role in the progression of high-grade lesions and cervical cancer.

关键词： Glutathione S-Transferase M1-Null Cervical Cancer Burkina Faso Mali

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role of Glutathione S-Transferase (<i>GSTM</i>1 and <i>GSTT</i>1) Genes Deletion in Susceptibility to HIV-1 Disease Progression

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Journal of Biosciences and Medicines 2020年第2期8卷 41-54页

作者： flor.ncia.wendkuuni djigma Pegdwendé Abel Sorgho Serge Théophile Soubeiga Albert Théophane Yonli Herman Karim Sombie Isabelle Touwendpoulimdé Kiendrebeogo Tégwindé r.beca.compa.r. Abdoul Karim Ouattara Bapio V. J. T. Elvira Bazie Bolni Marius Nagalo Jacques Simpore Molecular Biology and Genetics Laboratory (LABIOGENE) Department of Biochemistry and Microbiology University JOSEPH KI-ZERBO Ouagadougou Burkina Faso Pietro Annigoni Biomolecular research Center (CErBA) Ouagadougou Burkina Faso Institut de recherche en Sciences de la Sante (IrSS) Biomedical and Public health Department Ouagadougou Burkina Faso Division of Hematology and Oncology Mayo Clinic Scottsdale AZ USA

Background: Glutathione S-transferases (GSTs) are multifunctional enzymes which play an important role in oxidative stress pathways by conjugation with glutathione. Oxidative stress is one of several risk factors that may be associated with many types of diseases progression such as cancer and infectious diseases. In this study, we investigated the association between the polymorphism of GSTM1 and GSTT1 genes and the risk of HIV-1 disease progression. Methods: We conducted a case-control study including 313 participants of Burkina Faso: 153 HIV-1 infected individuals on antiretroviral treatment (ArT) and 160 HIV-1 negative individuals as controls. Presence or absence of the GSTM1 and GSTT1 genes was determined using multiplex polymerase chain reaction (PCr). CD4+ T counts and HIV-1 viral load were measured in patients using respectively BD FACSCount and Abbott m2000rt instruments. results: Frequencies of GSTM1-null and GSTT1-null were 30.35% and 35.46% respectively and the frequency of double deletion GSTM1-null/GSTT1-null was 14.38% in the general study population. GSTM1-null (30.35% versus 69.65%;Or = 1.90;p = 0.010), GSTT1-null (35.46% versus 64.54%;Or = 3.11;p GSTM1-active/GSTT1-null (21.08% versus 48.56%;Or = 3.17;p GSTM1-null/GSTT1-null (14.38% versus 48.56%;Or = 4.46;p GSTM1-null and GSTM1-null/GSTT1-null were associated with increased odds of low CD4+ count (3) and high HIV-1 viral load (≥1000 copies/mL). Conclusion: GSTM1-null, GSTT1-null genotype, the double genotypes GSTM1-active/GSTT1-null and GSTM1-null/GSTT1-null were associated with HIV-1 disease progression and GSTM1-null and GSTM1- null/GSTT1-null genotypes were associated with low CD4+ T cells counts and high HIV-1 viral load in HIV-1infected patients on ArT.

关键词： HIV-1 GSTM1 GSTT1 Burkina Faso

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DC-SIGN (CD209) Promoter -336 A/G Polymorphism Is Not Associated with Dengue Fever at Burkina Faso, West Africa

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Journal of Biosciences and Medicines 2023年第1期11卷 175-183页

作者： Fiffou Yougbare Aziz Sidi Aristide Tapsoba Pegdwendé Abel Sorgho Bagora Bayala Lassina Traore Prosper Bado Bapio Valérie Elvira Jean Télesphore Bazie Abdou Azaque Zoure Esther Mah Alima Traore Théodora Mahoukèdè Zohoncon Sessi Frida Tovo Albert Théophane Yonli Alice Kiba flor.ncia.wendkuuni djigma Jacques Simpore Laboratoire de Biologie Moléculaire et de Génétique (LABIOGENE) Université Joseph KI-ZERBO Ouagadougou Burkina Faso Centre de recherche Biomoléculaire Pietro Annigoni (CErBA) Ouagadougou Burkina Faso Université Saint Thomas d’Aquin Ouagadougou Burkina Faso Centre National de la recherche Scientifique et Technologique (CNrST) Ouagadougou Burkina Faso Centre National de Transfusion Sanguine (CNTS) Ouagadougou Burkina Faso

Objective: The aim of this study was to characterize the polymorphisms of the DC-SIGN (-336 A/G, rs4804803) gene and their association with the immunopathogenicity of dengue fever in Burkina Faso. Methods: A total of three hundred forty-one subjects, patients of all ages have been included in the study: 208 persons presenting clinical signs of dengue fever which were confirmed by diagnostic and 133 Healthy Controls. Genotyping for the CD209 variant (-336 A/G, rs4804803) was carried out using TaqMan SNP Genotyping Assays. Haplotype frequencies were inferred and compared between the study groups. results: The percentage of men was 61.88% (211/341) and 38.12% (130/341) for women. The highest frequency of dengue fever (77.42%) was noted in patients with age between 20 to 40 years. Around 1.52% of the study population was positive for HIV, 40.55% were carriers of HBV and 3.83% of HCV. Genotype distribution of the CD209 variant (-336 A/G, rs4804803) was in Hardy-Weinberg equilibrium in both patients and controls. The frequency of allele A was higher than allele G;however, statistical analyses showed that there is no significant difference in genotypes GG, AG and AA in patients and controls. Conclusion: This related no significant association with dengue for the variant of ?336 A/G in the DC-SIGN gene in an Ouagadougou population. However, our results offered the SNP frequencies in a West African population, which might be useful for the study of ethnic groups.

关键词： Dengue Virus CD209 Variant (-336 A/G rs4804803) Burkina Faso

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